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HFC0300HS-LF

Description
SPECIALTY ANALOG CIRCUIT
Categorysemiconductor    Analog mixed-signal IC   
File Size120KB,4 Pages
ManufacturerMPS Industries
Websitehttp://www.mpsind.com/index.html
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HFC0300HS-LF Overview

SPECIALTY ANALOG CIRCUIT

HFC0300HS-LF Parametric

Parameter NameAttribute value
stateACTIVE
Analog IC other typesANALOG CIRCUIT
HFC0300
Variable Off Time Controller
The Future of Analog IC Technology
DESCRIPTION
HFC0300 is a variable off-time controller that
uses a fixed-peak–current technique to
decrease its frequency as the load lightens. As
a result, it offers excellent efficiency at light-load
while optimizing the efficiency under other load
conditions.
When the frequency decreases to threshold,
the peak current decreases with the decreasing
load to prevent mechanical resonance in the
transformer. The controller enters burst mode
when the output power falls below a given level.
The HFC0300 features various protections such
as thermal shutdown, V
CC
under-voltage lockout,
overload protection, short-circuit protection, and
over-voltage protection.
The HFC0300 is available in SOIC-7 package.
FEATURES
Variable Off-Time, Current Mode Control
Universal Main Supply Operation (85VAC to
265VAC)
Frequency Foldback as Load Lightens
Peak-Current Compression to Reduce
Transformer Noise
Active-Burst Mode for Low Standby Power
Consumption
Internal High-Voltage Current Source
Internal 200ns Leading Edge Blanking
Thermal Shutdown (Auto Restart with
Hysteresis)
VCC Under-Voltage Lockout with Hysteresis
Over-Voltage Protection on VCC Pin
Timer-Based Overload Protection
Short-Circuit Protection
Natural Spectrum Shaping for Improved
EMI Performance
Battery Charger for Portable Electronics
Standby Power Supply
Switched-Mode Power Supplies
APPLICATIONS
For MPS green status, please visit MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
HFC0300 Rev. 1.0
9/23/2011
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
1

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state ACTIVE ACTIVE ACTIVE
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